Patanjali recognized this inherent limitation. In his often quoted and sourced Yoga Sutras, he states in one of the opening verses that Yoga is 'chitta vritti nirodha', roughly translating to 'the restraining or end of all fluctuations of the mind'.
By inviting a deeper awareness about how things feel (beneath the distracting and occasionally misleading surface), we can decide to ease back and invite a softness, or we can push forward to find a new strength.
Has anybody stopped to define exactly what we are talking about when we tell people to be in this somewhat mythological (and obviously desirable) thing called the moment? Google tells me it is a noun that means a very brief period of time.