Sirsasana or the head stand pose is the most important among inverted asanas. In Sanskrit the word ‘sirsha’ means ‘head’ and ‘asana’ means pose. Sirsasana is considered the king of all asanas and is usually done at the end of the yoga asana practices.
Niralamba Sirsasana or the unsupported head stand is a variation of Sirsasana or the classical head stand. Niralamba Sirsasana is more difficult to perform than Sirsasana as it attempts to balance the entire body weight solely on the head in the inverted position.
Salamba Sirsasana or the supported head stand is a variation of Sirsasana or the classical head stand. Salamba Sirsasana is easier to perform than Sirsasana as it provides more footprint for the balancing act.