Shahada sounds rather exotic, but to an ordinary Islamic, it is simply speaking an acceptance of Allah and believing that totally without doubt, even though the person involved has not ever seen Him. It also affirms the belief that Muhammed Sallalahu-alayhi-wasalam is the only person who has seen Allah and has been chosen as Allah’s spokesperson on Earth. Thereby, any message from Muhammed Sallalahu-alayhi-wasalam is one directly from Allah.
In order to reinforce this belief into their own soul and minds, prayers are said five times per day, praising both Allah and Mohammed Sallalahu-alayhi-wasalam. The declaration as it reads is: There is no god but God and Muhammed Sallalahu-alayhi-wasalam is the messenger of God. These are the two alone, although Mary and Jesus are revered also. But Allah is One, and not a trinity such as Christianity would have it.
However Shahada is much more than just belief. It is also the creed by which Muslimslive and exist. Although there are five pillars of Islam each is equally as important as each other and therefore forms the whole of the right to existence and being of an individual person. The Emperor Akbar declared it on his coins too: There is none worthy of worship but God and Mohammed is the prophet of God.
The main point that Shahada tries to impart is the Oneness of God or Allah, and the acceptance of Muhammed Sallalahu-alayhi-wasalam as His prophet and deliverer of messages. It is similar to Christianity in this thought, but Christianity refutes the existence of Muhammed Sallalahu-alayhi-wasalam and takes Jesus and The Holy Ghost as their Hands of God. In both Christianity and Islamic religion, Mary is not a key player, but she is very revered all the same. Jesus is taken as God’s Son but His role is a little less than Muhammed’s Sallalahu-alayhi-wasalam in the scheme of things with Islamics.