Yoga Asana Postures can be classified in 2 main levels. The two main categories are Meditative and Cultural. Cultural also has sub classification viz. Relaxative. The Relaxative postures are fatigue releasing postures.

ASANA - POSTURES
MEDITATIVE		CULTURAL
Padmasana		Physical		Relaxative
Siddhasana		Sirsasana		Shavasana
Svastikasana		Sarvangasana		Makarasana
Samasana, etc		Bhujangasana
		Halasana
		SuptaVajarasana , etc