Specific derivate of function with respect to subjective time and its psychical meaning. A movement of desire’s object relative desire is fundamental and original. A sequence of approaching and renovating of desire’s object relative desire can be like as a curve, wave or function on set like as initial primary function. There are obligatory conditions for existing first and second time derivate such: strived to zero time’s limitedness of human life. And of course here are derivates with respect to subjective time. There will be rapidity like psychical meaning for first time derivate. We raise the question of second time derivate for considering function. This is not an unanswerable question. If consider a rapidity desire’s object relative desire than will be possible to see what any obstacle or delay change a rapidity. Thus there is possibility for take a second time derivate. For second time derivate find its reflection in psychology too. In the first and second time derivate there are concentrated so much from wealth of state of mind. Processes of taking in active condition first and second derivates with respect to subjective time has attributive trait in psychology. For the first time derivate corresponds intellectual side of psyche and second time derivate corresponds emotional side. This is most general psychological interpretation for mathematical concept of derivate.