People have different moods that vary in different spaces, and the "light" is one of the most important factors affecting the mood of people in an indoor environment. Conducted with 50 volunteers using a church design in the virtual reality environment, the study aims to test individuals' mood changes in the designed church according to natural and artificial light conditions. In the study, the Positive and Negative Affect Schedule mood scale and the Oxford Happiness Questionnaire were used, in addition to the Likert-type Architectural Liking Scale. A significant correlation was found between the architectural liking scores and the difference in the average positive moods scores in the spaces with natural lighting and artificial lighting. It was also noted that the rate of positive mood reported by female participants was higher than male participants in the study.