Meditative Asanas:

Siddhasana: This is a meditative pose that calms down the entire nervous system and keeps it in good condition. This is the best asana for meditation and celibacy. It also relieves stress.
Swastikasana: This also calms down the entire nervous system and keeps it in good condition. This is also one of the best meditative poses.
Padmasana: This is also one of the best asanas for meditation and celibacy, and it helps in relieving physical, nervous and emotional problems. It increases the digestive fire and strengthens the joints.
Vajrasana: This is also a meditative pose that increases the functioning of the digestive system. This is the only asana that can be practiced after meals. It increases blood circulation above the waist and is beneficial for people who are very lethargic in nature.