Hardest catalyst to understand

[Learner]

I believe the mental pain resulted from the physical pain of someone we love is the hardest catalyst to process.
And if the entity that suffers is 3D that pain might make some sense in the big picture of spiritual evolution.
However I cannot comprehend suffering at 2D level and certainly the catalyst is really tough to process on my side.

Can someone explain to me why the 2D physical suffering is necessary considering the fact that there is no spiritual gain for the entity that suffers?  4D, 5D, 6D don't have to deal with physical suffering why isn't 2D spared of it?

What is the "positive" (talking about big picture) a 3D gets from a 2D physical suffering?  
How can I be positive about it knowing how useless that suffering is?

I've seen much confusion in the discussion so far and would like to offer my perspective. 

I thought Ra (but it could be mostly Q'uo) had made it clear that only the 3rd density is veiled, so 2D is not. So far in the discussion many seem to take that as there is no individual consciousness, but there is another way to look at it. To use an analogy, without the veil, everyone/thing know that life is just a game that the souls play. Imagine a favourite video game of yours (sorry if you are not a gamer), you play each time to gain progress in the game, to earn some type of reward in coins, stamina, loot, etc. You know you are going to fail the first time you try in some games, you repeat it until you are great -- that's part of the fun. Then you will want to try the game in a different character. The point is, when you fail the game -- got slain by an opponent, eaten by a beast, beaten to a pulp -- do you suffer pain as a player? Of course you will be upset when these happen, but you know this is all part of the game. Challenges in a game is part of the fun of the game. Consider the pain a player experienced when being stabbed in a game that cost him the game to that of actually being stabbed IRL, that's probably similar to the different scale in pain an animal experience than us. 

What's the purpose of 2D? It's the creator experiencing itself in so many different way, and offering service to the 3D being (if there is any). Seeing the suffering in 2D is a great catalyst for us to choose the path we want to take. We have so much power over the animals, how are we going to use it? 
Is it “bad”, or not STO to kill animals and eat their meat? Well, Q'uo said many things on “being and doing”, the gist is we under value “being” and over value “doing”. What's the state of being when one kills an animal and eat its meat? If one does this to feel the power, the control, the gratification to its own senses – we know it's STS. On the other hand, native Americans killed when they need to, give thanks to the animals, honor their spirit – definitely STO. We want to judge people by their actions, but it's not the action that counts, it's the “being”, the intentions and thoughts that count. But we cannot see people's intentions and thoughts – learn to let go judgment is an important step in the spiritual path.



Then the question is, if the 2D beings do not suffer, dose it justify anyone to abuse them? Of course not! 3D is the density of the choice. To me, one way to make the choice is to discover who we are, in the deepest sense. We need to choose to align with what we are. We are kind, we are compassionate, we care. We want to manifest that towards 2D beings, we do not need an exterior reason for that.  But if one believes animals don't suffer when being hurt, they will use it as an excuse to hurt and abuse animals... well, that's why STS value wisdom, they can be satisfied with logic and choose not to follow the heart. Animals are here offering opportunities for 3Ds to choose, they provide equal opportunities for both paths.
How is knowing 2D not suffer helpful to a 3D STO in his/her spiritual development? To me this is how it could: it could relieve us from the hatret of other 3D beings who has not choose to act compassionate towards 2D beings. When you see someone abusing an animal, how do you feel? Probably many of you feel your blood boiling, some may even wish the abuser suffer the same or worse fate than the abused... Without knowing the power of our thoughts, these type of thoughts probably have kept the abuse and suffering going...



When you can see all is one, and recognize this game of Life, you will want to give thanks to the abused for its role in the abuser's development; you will wish the abuser not wasting the opportunity to learn and able to act aligned with his/her true nature soon; you will not contributing the circle of separation by wishing harm on the abusers; you will wish all abuse to stop. But is seeing “all is well and beautiful” going to stop the abuses? Well, based on teachings about “being” and the power of thoughts, being the Creator does not necessarily need actions – this is something hard for us to believe, and i feel can only be grasped through experience.

-my 2c