Om Swami
How do I beat sleepiness and laziness while meditating?
Lift the mind with a bright light
When sleepiness or yawning comes in meditation, imagine a bright light and lift the mind a little higher so the laziness goes. You can also take one or two long breaths and return to your meditation.
When laziness comes to you, imagine a bright light, imagine a radiance, and lift the mind a little higher so that your laziness goes away.