Everything is relative and you absolutly need to a have an interest in doing something - that is where the heart desire comes from to enable the motivation that gets the intent and ki to lead to the manifestation of an action.
The catch is that for Aiki in particular our normal motivation is mis appropriated. In otherwords, if one wishes to "over come," "prevail," "dominate," "kill," or even "love" it usually screws up the Aiki process as one's heart, mind/intent, ki, body becomes linearly directed and expresses that desire a "normal" way. It is paradoxical. The more one wishes to accomplish one's goal, the more the goal must be to accomplish Aiki within one's self. Masa Katsu A Katsu.
Folks wanting what they want strongly are a dime a billion.