You might have noticed sometimes if you've ever had a really powerful healing session you can get quite sleepy during it or just after. Sometimes too when strong solar flares happen people get waves of drowsiness (either that or we feel hyper-adrenalised!).
Someone recently asked why this happens: Our energy can shift more
powerfully when we're asleep and our ego/busy mind is out of the way. So
it's like some part of us beyond our conscious self takes the reins by
putting us into sleepy time zone during times when we are shifting
something, or many things, deeply and rapidly. Energy never fails to
amaze me in its innate, automated wisdom.
(c) Dana Mrkich 2014