Ibadah (عبادة, ‘ibādah, also spelled ibada) is an Arabic word meaning service or servitude. In Islam, ibadah is usually translated as "worship", and ibadat—the plural form of ibadah—refers to Islamic jurisprudence (fiqh) of Muslim religious rituals.
This requires a special understanding and cognition of the reality and continuous presence and grace of God in our lives and the nature of our connection with Him as well as our utter dependence on Him.
You may find useful to watch this recently concluded series of lectures by Sh. Javad Shomali.
Thank you for your question. Satan will try anything. There was a story of a mystic where Satan came to him at prayer time and tell him to pray just so that a he may be confused into obeying him. The mystic said I am praying but not because you told me and continued his worship. The best way to deal with Satan is to ignore your doubts and to be sure of what you are doing and why you are doing it.
May you always be successful
It is not the way of real worship to force it on people. Worship is a link between Human beings and their Creator Allah (SWT) and it must be performed with sincere will and intention for the sake of Allah. Forced worship done to please some one else other than Allah is not valid.
Thank you for your question. Enjoying worship stems from the feeling of God's presence and His love within. For these feelings, a person needs to be calm, not in a rush to perform another task and sincere in their pursuit. They need to comprehend how much they need worship and how it is their lifeline to a connection to the Divine and all that is truly spiritual. If worship is approached humbly, lovingly and beautifully then a person will find solace in worshipping and will deeply value their connection with God, which is a connection of love and happiness.
May you always be successful
It is Almighty God who appoints obligatory acts to His creation, and for us Muslims to comply to the commands and requirements given to us by Him. If the Almighty says that we pray in a particular way, and in another way when travelling, or to fast, and at times not fast, we must follow this.
Islam is a natural, understanding and forebearing, and the Shari'ah accommodates to our human needs.
The condition of prayer is that one must be in the state of ritual purity, which means one cannot pray while in the state of Janabah, Haydh or Nifas.
As for the exemption given to a woman being in Haydh or Nifas (post-natal bleeding), one reason that can be given is that a woman goes through various physical, emotional and mental strenuousness while menstruating. Almighty God wants to give her a rest from fulfilling this particular obligation.
It could be difficult for her in these states to bow and prostrate, and so on, so she can rest from these actions for the few days. She is bleeding, and a lot of things are being affected by this, so she should not add burden to this by having to pray, or having to fast.
However, in no way does it mean a woman is to be "isolated", or that she is "dirty", or that she will be deprived of socialising, or worshiping Allah ta'ala during this time. These are things that other religious have mentioned regarding a menstruating woman.
Rather the opposite, it is still recommended that at the five wajib prayer times a menstruating woman performs her wudhu', and sits in her prayer niche and supplicates and does dhikr, to the amount of how long the obligatory prayer would take. Also, she can recite the Quran (with exemption of certain surahs), and anything else that will grant her spiritual proximity to the Almighty.
And Allah knows best.