I heard that Shias use a word taqiyya, in the al-Kafi book by Kulayni Imam Sadiq is quoted as saying: ... taqiyya is my religion... (Reference: الكافي للكليني (329 هـ) الجزء2 صفحة219 باب التقية).
I didn't find English reference so I must give the Arabic one. So what exactly do Shias means by taqiyya and why it's so important to them to say it's my religion?
If it's hide fellings, Ammar ibn Yassir can use taqiya and dissimulate his true felling and save himself and his family, Bilal ElHabachi too, Ashab El Oukhdoud too [surat 85], Jesus disciple who are killed too. So what I understand in general is that taqiya is used when you're afraid, so begin afraid you're ready to do anything to save yourself, do what's not in religion, lie, commit haram. So what it means to be passion, since you can just hide.
Is it more worth to lie or to face death with your believes if you're really religious and look the sake of ALLAH?? I want clarity please!!
Cursed were the companions of the trench when they were sitting near it And they, to what they were doing against the believers, were witnesses. And they resented them not except because they believed in Allah , the Exalted in Might, the Praiseworthy [85, 5-8]
That is only Satan who frightens [you] of his supporters. So fear them not, but fear Me, if you are [indeed] believers. [3,175]