Method for operating a Virtual Reality System, comprising the steps: - detecting, by means of a detection device, a position and head alignment of a person who is wearing virtual reality glasses and is in a detection area; - displaying a virtual object arranged in a virtual environment by means of the virtual reality glasses from a virtual perspective, which is predetermined in accordance with the detected position and head alignment; - determining on the basis of the detected position whether the person has not reached a predetermined distance from a boundary of the detection area; - as long as it is determined that the person has not reached the predetermined distance: displaying an effect (26, 28) by means of the virtual reality glasses characterising the fact that the predetermined distance has not been reached, wherein the type of representation of the effect (26, 28) is predetermined as a function of the determined head alignment; characterised in that - on the basis of the detected head alignment, it is determined whether the head of the person is aligned frontally or rearwardly to the boundary of the detection area when the predetermined distance has not been reached; - in the case of a frontal alignment of the head towards the boundary, only a virtual limit arranged in front of the person in the virtual environment is displayed as the effect by means of the virtual reality glasses; - in the case of a rearward alignment of the head towards the boundary, a grid corresponding to the detection area is displayed in the virtual environment as the effect by means of the virtual reality glasses and/or the virtual object is at least partially hidden and/or darkened and/or the virtual environment is at least partially hidden and/or darkened. - detecting, by means of a detection device, a position and head alignment of a person who is wearing virtual reality glasses and is in a detection area; - displaying a virtual object arranged in a virtual environment by means of the virtual reality glasses from a virtual perspective, which is predetermined in accordance with the detected position and head alignment; - determining on the basis of the detected position whether the person has not reached a predetermined distance from a boundary of the detection area; - as long as it is determined that the person has not reached the predetermined distance: displaying an effect (26, 28) by means of the virtual reality glasses characterising the fact that the predetermined distance has not been reached, wherein the type of representation of the effect (26, 28) is predetermined as a function of the determined head alignment; characterised in that - on the basis of the detected head alignment, it is determined whether the head of the person is aligned frontally or rearwardly to the boundary of the detection area when the predetermined distance has not been reached; - in the case of a frontal alignment of the head towards the boundary, only a virtual limit arranged in front of the person in the virtual environment is displayed as the effect by means of the virtual reality glasses; - in the case of a rearward alignment of the head towards the boundary, a grid corresponding to the detection area is displayed in the virtual environment as the effect by means of the virtual reality glasses and/or the virtual object is at least partially hidden and/or darkened and/or the virtual environment is at least partially hidden and/or darkened.