Final answer:
Martin Luther's 95 Theses protested against Church practices and corruption, especially the sale of indulgences, and emphasized faith alone for salvation, inadvertently leading to the Protestant Reformation.
Step-by-step explanation:
The ideas and feelings that Martin Luther was trying to express in the 95 Theses were primarily related to protest against Church practices and corruption, particularly the sale of indulgences. Through these theses, Luther sought to challenge the Catholic Church's teaching that salvation could be bought or earned through good deeds, and instead emphasized justification by faith alone.
Luther was critical of what he saw as the Church's exploitation of ordinary people, using indulgences as a way to raise money for the Church, namely for projects like the construction of St. Peter's Basilica in Rome.
Luther's intent with the Ninety-five Theses was to instigate a discussion and reform within the Church. However, instead of sparking reform from within, his actions inadvertently led to what became known as the Protestant Reformation. This schism ultimately resulted in the division of Christianity into Protestant and Catholic factions.