The One who sits on an Asana of Tiger Skin
The One who seats on an Asan of Absolute Power.

Here one must note that the tiger, though not the king of the jungle is, as an animal muscle to muscle, skill to skill, a More capable animal than the Lion is. The Tiger is the biggest among the cat family. It is way more powerful. It is a bigger better swimmer, it has greater stealth ability, greater hunting ability than a lion Here, Ma Kali seated on the skin of the Tiger merely means that she is the master of all these capabilities, so for a devoutee who is merely employed in a very simple job, he still attends and retains such qualities and he will always manifest and show these qualities in his daily life. However, he may not be able to display these skills in a karmik job and hence must always aim for a higher quest where he will be able to unleash these qualities and utilise them for a higher purpose.

Your PURPOSE may be BIGGER than the LION.
Hence the name, VYGHRATVAGAMBARA