64|A FONDO “Our work is always for and serving the architects, or other clients. We always illuminate the ideas and concepts of others. “ people and their styles of design, the understanding of the activity for which will be targeted the project. Everything, in short, the creative environment, cul- tural and personal of the project. In the above cases, the Basilica of the Sagrada Familia and the Mercer Hotel, which served as examples in the lectures, you can follow well this step of understanding the project. The Mercer Hotel by the architect Rafael Moneo is the rehabilitation of a historic building, which includes a part of the Roman Wall of the fourth century AD. The project begins from a previous valuable reality, and the final result must be a respectful and revaluing architecture of the old and the new. Its location in the Gothic Quarter of Bar- celona brings other factors: the narrow walkways, the bustle and noise due to the large tourist presence ... These and others will be also important in the rea- lization of the concept. Moneo’s project is also accompanied by his trademark: the elegance of the result, serenity of the means and the positions, and his particular one, harmony of the whole. In the case of the Sagrada Familia, the correct understanding of the pro- ject first includes the figure and work of Antoni Gaudi, the role of the Catholic Church, the origin and history of the construction process, the project ob- jectives of the Sagrada Familia and the architectural means of translating them to the building. So we must face the project knowing what it is and what it is about, for whom it is intended and what is light needed in that project. All these are the features before any project, it is to know where and with which we are going to work. 3 - Define a concept: Responding to the needs of the Project We know it, we have experienced it; there is no good lighting project if it did not have before, a clear, massive, overwhelming, effective concept, to gui- de any decision over the project. Defining a concept is the guide to use light in space, that way it will respond to the needs of space and architecture, of the people who use or enjoy it, but also the needs of the activity in which it develops. The concept will require from us a way to operate in front of the decisions, and respond to those specific requirements of each project. Let’s continue with the previous examples: In the Mercer Hotel, we can summarize the clues of the concept. I just have to note that the brevity of these lines make these subpoenas incomplete. The hotel has to be seen as a place of spaciousness and tranquillity, isolated from the street and city frenzy, real rest of the customer, in many cases tourists. The sense of calm has to come also from the natural order, also an expec- ted order, rigorous, and in the sense of Fotógrafo: Jordi Folch