MANSAA
Literally: desire, wish, object, intent. Its root is man: man+sa =of the mind or because of mind. It is desire or hope or intention of mind.
In Guru Granth Sahib, aasaa (hope) and mansaa (desire) have usually come together. This term has, usually, been used in reference to human wishes, leading to hope, for getting more and/or better things.
In this sense, aasaa mansaa is against the Sikh concept of bhaanaa mannanaa (surrender to the Will of God).
But, if one has a wish to be God-oriented or self-realized then such aasaa-mansaa is a positive thing. A Sikh is expected to forsake material wishes:
Such a person is rare who forsakes them (i.e. aasa mansaa).
(Guru Granth Sahib, p.956)
The whole world has been deluded by aasa mansaa
(Guru Granth Sahib, p.59)
Word of Guru burns aasa mansaa. (Guru Granth Sahib, p.413)
(Dr Harjinder Singh Dilgeer)