Good will , compassion , equanimity etc are objects of meditation. Good will is used to escape from ill-will. Compassion is used to escape from viciousness. Equanimity is used to escape from passion. All the above ideas are familiar to me and I understand them well.
Along the similar lines there is a concept of signless (I guess signless is also an object of meditation). Signless is used to escape from all signs.
Following quote from aṅguttara nikāya explains signless :
“Furthermore, there is the case where a monk might say, ‘Although the signless has been developed, pursued, handed the reins and taken as a basis, given a grounding, steadied, consolidated, and well-undertaken by me as my awareness-release, still my consciousness follows the drift of signs.’ He should be told, ‘Don’t say that. You shouldn’t speak in that way. Don’t misrepresent the Blessed One, for it’s not right to misrepresent the Blessed One, and the Blessed One wouldn’t say that. It’s impossible, there is no way that—when the signless has been developed, pursued, handed the reins and taken as a basis, given a grounding, steadied, consolidated, and well-undertaken as an awareness-release—consciousness would follow the drift of signs. That possibility doesn’t exist, for this is the escape from all signs: the signless as an awareness-release.’
I am having difficulty in understanding what are signs?
My question is : what is signless (or what is sign) and what is meant by escape from all signs?