Motivation refers to a drive that is sufficiently pressing to direct the person to seek satisfaction of the need while a need becomes a motive when it is aroused to a sufficient level of intensity. In human psychology it is realised when a person feels strongly that he is lacking something. That person is bound to take a certain positive action so as to reduce or eliminate the deficiency. The person is therefore motivated by the need to act in a manner such that his need is satisfied. Therefore, the forces that have moved that person to react in the manner he does are his motivations.
Motivation can be viewed better by looking at factors which help sustain the quality or intensity of the manifested behaviour