States attained during meditation?

[Observer]

For me, immediately upon entering my sitting position I can feel my crown "light up". It feels as if a beam of energy is entering my body from where my hair stems out. Then my third eye "opens" and my chakras slowly activate. It's sensational and I meditate often to see if my chakras are activated and at a healthy level. Lately it has been seeming like I am too exhausted to stay in this meditative state for longer than a short period. Must be my sleep schedule.