The Solemnity of Assumption Of The Blessed Virgin Mary Feast Day - 15 August

Quoted below is from Relevant Radio [1]:

August 15 marks the most important Marian feast day of the year: The Assumption [of the Blessed Virgin Mary]. This day commemorates when Mary was assumed into Heaven, body and soul. In 1950, Pope Pius XII made it a dogma of the Church, an unquestionable teaching that verified this undeniable truth. While the New Testament makes no explicit mention of Mary’s dormition or assumption into Heaven, it has been affirmed by Christian Tradition and the accounts of saints, and historical Scripture points to its veracity. Just as God brought Enoch and Elijah directly into Heaven, He has the power to bring Our Lady, who was conceived without sin.

Because of this flawless conception, Mary was not subject to the stains and scars of Original Sin, namely labor pains, sickness, and death. Therefore, when Pope Pius XII wrote the dogma for the Assumption of Mary, he did not specify whether she died or whether she “fell asleep.” Some say that she died, not because of sin, but to imitate the life and death of Christ, perfection in all things. Others say that because she was not subject to it, she merely entered a deep sleep before her assumption.

Quoted below is from Wikipedia [2]:

The Catholic Church teaches as dogma that the [Blessed] Virgin Mary "having completed the course of her earthly life, was assumed body and soul into heavenly glory". This doctrine was dogmatically defined by Pope Pius XII on 1 November 1950, in the apostolic constitution Munificentissimus Deus by exercising papal infallibility. While the Catholic Church and Eastern Orthodox Church believe in the Dormition of the Mother of God (Dormition of the Theotokos or "the Falling Asleep of the Mother of God"), whether Mary as the New Eve had a physical death has not been dogmatically defined. In Munificentissimus Deus (item 39) Pope Pius XII pointed to the Book of Genesis (3:15) as scriptural support for the dogma in terms of Mary's victory over sin and death through her intimate association with "the new Adam" (Christ) as also reflected in 1 Corinthians 15:54: "then shall come to pass the saying that is written, Death is swallowed up in victory"

[1] https://relevantradio.com/2021/08/the-feast-of-the-assumption/#:~:text=August%2015%20marks%20the%20most%20important%20Marian%20feast,an%20unquestionable%20teaching%20that%20verified%20this%20undeniable%20truth.

[2] https://en.wikipedia.org/wiki/Assumption_of_Mary, quoted without references and hyperlinks.