The lives of individuals are determined by the activities that the individual adopted either in previous lives or in this. The consequences of acts done in the past lives that affect this life are called Praarabdha. The Karma that one is engaged in now which is bound to affect the future is called Aagaami. The aggregate Karma of the past that is slowly being worked out by the individual life after life is called Sanchitha. Just as an activity that one is engaged in can be referred to as Karma, being silent and quiescent is called Akarma! If you are not attached to the fruits of the action you perform, but are engaged in it as your duty, as your way of worship; then you can practice Akarma even when engaged in Karma. This is the highest Sadhana.