Saturn, Jupiter, Mars; Mercury and Venus are referred to as Khamsa Mothera because as we know that the Sun is in the 4rth sky. Besides the Moon, Saturn, Jupiter, Mars; Mercury and Venus revolve around the Sun. Before commencing the amal the amil should observe these Khamsa Mothera carefully to see whether they are related with the amal or not. If they are connected then it should be observed whether they benefic in terms of the amal or not. If they are positive then the amal can be started, while keeping in mind the other details. Inshallah the amal will have a positive outcome.
There is another way by which the amil can protect him self from the negative effects of the planets. In this way the amal will also become successful.