Objectives: Over the next 30 years there will be a considerable increase in the number of elderly parents of children with intellectual disability. The present article is a part of a phenomenological study on the lived experience of elderly parents of children with intellectual disability which focuses on the issue of spirituality. There is insufficient scientific evidences related to this important phenomenon.

Methods & Materials: Based on a purposeful sampling, ten elderly parents of children with intellectual disability (5 mothers and 5 fathers) took part in the un-structured deep interviews. The data were analyzed using a Colaizzi phenomenological approach.

Results: “Spirituality” was one of the four identified emergent themes. The other emergent themes were “Bitterness” ,”Emotional attachment”, ”Support satisfaction”. Despite of having difficulties in caregiving to the child with disability, the parents appreciate God and consider the child as his will. They also trust in God when facing problems.

Conclusion: In the current study, spirituality was emerged as an important theme. The participants do believe that having a child with disability is God's will and even his bless. In this way of thinking, suffering and sorrows become tolerable, less painful and even valuable. Spirituality could be considered as a part of care plans for the elderly parents of children with intellectual disability. Since this phenomenon is a process it would be better to investigate that by Grounded Theory approach.