“If the beginner yogi sits on the hard floor to meditate he will find his legs going to sleep, owing to pressure on his flesh and arteries. If he sits on a blanket over a spring pad or mattress, on the floor, or over a hard bed, he will not experience discomfort in his legs. A Westerner, used to sitting on chairs with his thighs at a right angle to his torso, will find it more comfortable to meditate on a chair with a woollen blanket and silk cloth under him, extending under his feet which rest on the floor. Those Western yogis, especially youths, who can squat on the floor like Orientals, will find their knees pliable, owing to their ability to fold their legs in an acute angle. Such yogis may meditate in the lotus posture, or in the more simple cross-legged position.
“No one should try to meditate in the lotus posture unless he is at ease in that position. To meditate in a strained posture keeps the mind on the discomfort of the body. Meditation should ordinarily be practised in a sitting position. Obviously, in a standing posture (unless one is advanced) he may fall down when the mind becomes interiorized. Neither should the yogi meditate lying down, for he might resort to the “practised” state of slumber.
“The proper bodily posture, one which produces calmness in body and mind, is necessary to help the yogi shift his mind from matter to Spirit.”
— Paramahansa Yogananda, God Talks With Arjuna: The Bhagavad Gita